Herbs, shrubs or trees. Leaves simple or compound, alternate, usually with stipules which are sometimes adnate to the petiole. Inflorescences terminal, racemose or cymose. Flowers usually bisexual and regular. Floral tube present or the receptacle expanded to form a shallow cup. Sepals 4–5, usually imbricate, sometimes with an epicalyx. Petals 4–5, sometimes absent. Stamens few to numerous, perigynous or epigynous. Carpels 1–several, free or connate, superior or inferior. Fruit an achene, capsule, drupe or pome (inferior berry). c. 45 gen., mostly temp.Members of the genus Prunus (Plums, Cherries etc) may be found around old building sites, but none appear to be naturalized.